#9197(undetermined:new): DNG - aspect ratio suddely changes mid-clip
#9197: DNG - aspect ratio suddely changes mid-clip -------------------------------------+------------------------------------- Reporter: Eugene | Type: defect Status: new | Priority: normal Component: | Version: git- undetermined | master Keywords: | Blocked By: Blocking: | Reproduced by developer: 0 Analyzed by developer: 0 | -------------------------------------+------------------------------------- Summary of the bug: In a DNG (image2) -> H.264 (libx264) transcode, the output aspect ratio and frame alignment suddenly changes around frame 12 First 12 frames (as expected, but off color): [[Image(https://i.imgur.com/83Fs2Ya.png)]] Frames 13 onwards (layout distorted): [[Image(https://i.imgur.com/tvD8K2N.png)]] How to reproduce: Simple repro (25 frames, all identical): https://www.dropbox.com/s/556rltwsukogc4q/ffmpeg-repro.tgz?dl=0 {{{ffmpeg -stats -f image2 -start_number 0 -i D001_C001_20200907_R0%04d.dng -f mp4 -vcodec libx264 -y -s 1280x720 -pix_fmt yuv420p out.mp4}}} Tested with ffmpeg 4.2, 4.4 and 4.5-dev (git-2021-03-20-c361fa9), also the same result with a different output encoder and format. -- Ticket URL: <https://trac.ffmpeg.org/ticket/9197> FFmpeg <https://ffmpeg.org> FFmpeg issue tracker
#9197: DNG - aspect ratio suddely changes mid-clip -------------------------------------+------------------------------------- Reporter: Eugene | Owner: (none) Type: defect | Status: new Priority: normal | Component: | undetermined Version: git-master | Resolution: Keywords: | Blocked By: Blocking: | Reproduced by developer: 0 Analyzed by developer: 0 | -------------------------------------+------------------------------------- Description changed by Eugene: Old description:
Summary of the bug:
In a DNG (image2) -> H.264 (libx264) transcode, the output aspect ratio and frame alignment suddenly changes around frame 12
First 12 frames (as expected, but off color): [[Image(https://i.imgur.com/83Fs2Ya.png)]]
Frames 13 onwards (layout distorted): [[Image(https://i.imgur.com/tvD8K2N.png)]]
How to reproduce:
Simple repro (25 frames, all identical): https://www.dropbox.com/s/556rltwsukogc4q/ffmpeg-repro.tgz?dl=0
{{{ffmpeg -stats -f image2 -start_number 0 -i D001_C001_20200907_R0%04d.dng -f mp4 -vcodec libx264 -y -s 1280x720 -pix_fmt yuv420p out.mp4}}}
Tested with ffmpeg 4.2, 4.4 and 4.5-dev (git-2021-03-20-c361fa9), also the same result with a different output encoder and format.
New description: Summary of the bug: In a DNG (image2) -> H.264 (libx264) transcode, the output aspect ratio and frame alignment suddenly changes around frame 12 First 12 frames (as expected, but off color): [[Image(https://i.imgur.com/83Fs2Ya.png, 600px)]] Frames 13 onwards (layout distorted): [[Image(https://i.imgur.com/tvD8K2N.png, 600px)]] How to reproduce: Simple repro (25 frames, all identical): https://www.dropbox.com/s/556rltwsukogc4q/ffmpeg-repro.tgz?dl=0 {{{ffmpeg -stats -f image2 -start_number 0 -i D001_C001_20200907_R0%04d.dng -f mp4 -vcodec libx264 -y -s 1280x720 -pix_fmt yuv420p out.mp4}}} Tested with ffmpeg 4.2, 4.4 and 4.5-dev (git-2021-03-20-c361fa9), also the same result with a different output encoder and format. -- -- Ticket URL: <https://trac.ffmpeg.org/ticket/9197#comment:1> FFmpeg <https://ffmpeg.org> FFmpeg issue tracker
#9197: DNG - aspect ratio suddely changes mid-clip -------------------------------------+------------------------------------- Reporter: Eugene | Owner: (none) Type: defect | Status: new Priority: normal | Component: | undetermined Version: git-master | Resolution: Keywords: | Blocked By: Blocking: | Reproduced by developer: 0 Analyzed by developer: 0 | -------------------------------------+------------------------------------- Comment (by Michael Koch): I can reproduce the problem. -- Ticket URL: <https://trac.ffmpeg.org/ticket/9197#comment:2> FFmpeg <https://ffmpeg.org> FFmpeg issue tracker
#9197: DNG - aspect ratio suddely changes mid-clip -------------------------------------+------------------------------------- Reporter: Eugene | Owner: (none) Type: defect | Status: new Priority: normal | Component: | undetermined Version: git-master | Resolution: Keywords: | Blocked By: Blocking: | Reproduced by developer: 0 Analyzed by developer: 0 | -------------------------------------+------------------------------------- Comment (by Balling):
(as expected, but off color):
And why is that? -- Ticket URL: <https://trac.ffmpeg.org/ticket/9197#comment:3> FFmpeg <https://ffmpeg.org> FFmpeg issue tracker
#9197: DNG - aspect ratio suddely changes mid-clip -------------------------------------+------------------------------------- Reporter: Eugene | Owner: (none) Type: defect | Status: new Priority: normal | Component: | undetermined Version: git-master | Resolution: Keywords: tif | Blocked By: Blocking: | Reproduced by developer: 1 Analyzed by developer: 0 | -------------------------------------+------------------------------------- Changes (by Carl Eugen Hoyos): * keywords: => tif * reproduced: 0 => 1 Comment: Reproducible for example with this command line: {{{ $ ffmpeg -loop 1 -i D001_C001_20200907_R00000.dng -f image2 -update 1 -vcodec rawvideo md5: }}} -- Ticket URL: <https://trac.ffmpeg.org/ticket/9197#comment:4> FFmpeg <https://ffmpeg.org> FFmpeg issue tracker
#9197: DNG - aspect ratio suddely changes mid-clip -------------------------------------+------------------------------------- Reporter: Eugene | Owner: (none) Type: defect | Status: closed Priority: normal | Component: | undetermined Version: git-master | Resolution: fixed Keywords: tif | Blocked By: Blocking: | Reproduced by developer: 1 Analyzed by developer: 0 | -------------------------------------+------------------------------------- Changes (by Elon Musk): * status: new => closed * resolution: => fixed -- Ticket URL: <https://trac.ffmpeg.org/ticket/9197#comment:5> FFmpeg <https://ffmpeg.org> FFmpeg issue tracker
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